Korean journal of applied entomology (한국응용곤충학회지)

Korean Society of Applied Entomology (한국응용곤충학회)
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Occurrence of Liriomyza trifolii and its Biological Control using Neochrysocharis formosa in Eggplant Greenhouse

시설가지에서 아메리카잎굴파리 발생과 Neochrysocharis formosa (Hymenoptera: Eulophidae)를 이용한 아메리카잎굴파리 밀도억제 효과

  • Published : 2007.12.30
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Abstract

Occurrence of Liriomyza trifolii and its biological control efficacy using Neochrysocharis formosa were evaluated in two eggplant cropping systems of spring and autumn cultivation. L. trifolii adults began to be attracted on a yellow sticky traps from late April and they increased from early June. A high density of L. trifolii adults was maintained from middle June to middle July. The releases of two N. formosa per plant with 3 times as weekly intervals from May 25, 2004 for spring culture resulted control effect of 90.1% in parasitism to L. trifolii in late July. The releases of two N. formosa per plant with 4 times as weekly intervals from August 31, 2004 for autumn culture resulted control effect of 81.3% in population of L. trifolii with 64.4-69.9% in parasitism.

가지 시설재배 포장에서 아메리카잎굴파리 발생양상과 아메리카잎굴파리의 천적인 Neochrysocharis formosa (신칭: 굴파리푸른좀벌) 방사에 의한 밀도 억제 효과를 조사하였다. 황색끈끈이트랩에 아메리카잎굴파리 성충은 4월 하순부터 포획되기 시작하여 6월 상순부터 포획량이 증가하고 7월 상순까지 높은 밀도를 유지하다가 감소하였다. 봄 작형(5-7월)에서 N. formosa를 아메리카잎굴파리 유충 밀도가 엽당 0.2마리일 때부터 주당 2마리씩 3회 방사한 결과 조사 종료기인 7월 28일의 기생률은 90.1% 이었다. 가을 작형(8-10월)에서 유충밀도가 엽당 0.3마리일 때부터 주당 2마리씩 4회 방사한 결과 조사 종료기의 밀도 억제 효과는 무처리 대비 81.3% 이었으나 4차 방사이후 기생률은 $64.4{\sim}69.9%$로 약간 낮았다.

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References

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